MLA

A. R. Ajitha, and Sabu Thomas. Poly Trimethylene Terephthalate. Springer Nature Singapore, 2023.

APA

A. R. Ajitha, A. R. Ajitha, & Thomas, S. (2023). Poly Trimethylene Terephthalate. Springer Nature Singapore.

Chicago

A. R. Ajitha, and Sabu Thomas. Poly Trimethylene Terephthalate. : Springer Nature Singapore, 2023.